Deborah Vernon Buller Murphy (née Drake-Brockman, previously Hackett and Moulden; 18 June 1887 – 16 April 1965), best known as Lady Hackett or Lady Moulden, was an Australian community worker, philanthropist, and mining investor. Born in West Guildford, Western Australia, on 18 June 1887, she was the daughter of surveyor Frederick Slade Drake-Brockman and heroine Grace Vernon Bussell and younger sister of Edmund Drake-Brockman.